US4510687A - Shaving apparatus - Google Patents

Shaving apparatus Download PDF

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Publication number
US4510687A
US4510687A US06/453,425 US45342582A US4510687A US 4510687 A US4510687 A US 4510687A US 45342582 A US45342582 A US 45342582A US 4510687 A US4510687 A US 4510687A
Authority
US
United States
Prior art keywords
hair
shear plate
frame
pulling
cutting unit
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
US06/453,425
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English (en)
Inventor
Gerrit J. Groothuis
Atze de Haan
Hendrik Poel
Eduard W. Tietjens
Jochem J. de Vries
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
US Philips Corp
Original Assignee
US Philips Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by US Philips Corp filed Critical US Philips Corp
Assigned to U.S. PHILIPS CORPORATION, A CORP. OF DEL. reassignment U.S. PHILIPS CORPORATION, A CORP. OF DEL. ASSIGNMENT OF ASSIGNORS INTEREST. Assignors: DE HAAN, ATZE, DE VRIES, JOCHEM J., GROOTHIUS, GERRIT J., POEL, HENDRIK, TIETJENS, EDUARD W.
Application granted granted Critical
Publication of US4510687A publication Critical patent/US4510687A/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26B—HAND-HELD CUTTING TOOLS NOT OTHERWISE PROVIDED FOR
    • B26B19/00—Clippers or shavers operating with a plurality of cutting edges, e.g. hair clippers, dry shavers
    • B26B19/38—Details of, or accessories for, hair clippers, or dry shavers, e.g. housings, casings, grips, guards
    • B26B19/42—Details of, or accessories for, hair clippers, or dry shavers, e.g. housings, casings, grips, guards providing for straightening the hair to be cut, e.g. by means of bristles; providing for tensioning the skin, e.g. by means of rollers, ledges
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26B—HAND-HELD CUTTING TOOLS NOT OTHERWISE PROVIDED FOR
    • B26B19/00—Clippers or shavers operating with a plurality of cutting edges, e.g. hair clippers, dry shavers
    • B26B19/02—Clippers or shavers operating with a plurality of cutting edges, e.g. hair clippers, dry shavers of the reciprocating-cutter type
    • B26B19/04—Cutting heads therefor; Cutters therefor; Securing equipment thereof
    • B26B19/044—Manufacture and assembly of cutter blocks

Definitions

  • This invention relates to a shaving apparatus which comprises a shear plate with hair-entry apertures and a cutting unit which is arranged to be driven with a reciprocatory motion relative to the shear plate and which comprises a frame carrying a plurality of cutters, the cutters being provided with hair-pulling blades which are movable relative to the cutters.
  • Such a shaving apparatus is known from, for example, U.S. Pat. No. 4,261,101. Since the hair-pulling blades are movable relative to the associated cutters the hair-pulling blades can slightly pull up hairs before these hairs are severed by the cutters. The proper operation of the hair-pulling blades greatly depends on their suspension in the cutting unit.
  • the present invention aims at improving the construction of the cutting unit in this respect and is characterized in that the hair-pulling blades are each connected to the frame by a resilient element.
  • connection of the hair-pulling blades to the frame by resilient elements provides greater freedom as regards the construction of the resilient support for the hair-pulling blades, so that such support can be optimized to obtain the proper operation of the hair-pulling blades by simpler means.
  • the invention makes it possible to use constructions which can be manufactured and assembled in a simple manner. These factors have a cost-saving effect on the manufacturing process.
  • each resilient element comprises an arm which is made of a sheet material and which is integral with the associated hair-pulling blade, which is also made of a sheet material.
  • each resilient element includes a part made of an elastomeric material.
  • An embodiment comprising a hair-pulling blade on both sides of each cutter is characterized in that the two hair-pulling blades are each connected to the frame by a resilient element.
  • each hair-pulling blade is connected adjacent its ends to the frame by respective resilient elements which comprise arms made of a sheet material, the arms extending transversely of the direction of movement of the cutting unit and being arranged substantially in line with each other, the ends of the arms which are nearer one another being supported on a central portion of the frame while the other end of each arm engages beneath a hook-shaped portion of the frame.
  • FIG. 1 is a perspective view of a shaving apparatus with the shear plate partly broken away.
  • FIG. 2 is a side view partly in section, on an enlarged scale of a portion of the cutting unit of the shaving apparatus shown in FIG. 1.
  • FIG. 3 is a sectional view on a further enlarged scale taken partly on the line IIIA--IIIA and partly on the line IIIB--IIIB in FIG. 2.
  • FIG. 4 shows a pair of hair-pulling blades in a side view
  • FIG. 5 is a sectional view taken on the line V--V in FIG. 4.
  • FIG. 6 shows an intermediate stage in the manufacture of a plurality of hair-pulling blades from a sheet material.
  • FIG. 7 is a longitudinal sectional view on an enlarged scale of a detail of a different version of the cutting unit.
  • FIG. 8 is a sectional view taken on the line VIII--VIII in FIG. 7.
  • the shaving apparatus shown in FIG. 1 comprises a housing 1 having a detachable shaving head 2.
  • the shaving head 2 comprises a shear plate 3 formed with hair-entry apertures 4.
  • a cutting unit 5 is adapted, which unit is arranged to be reciprocated in known manner relative to the shear plate 3 as indicated by the arrows P.
  • the cutting unit includes arcuate cutters 6.
  • the cutting unit 5 is shown in detail in FIGS. 2 and 3.
  • the arcuate cutters 6 are parts of an originally flat rectangular plate 7 which is secured to a frame 8 in arcuate form.
  • the right-hand part of FIG. 2 shows a portion of the cutting unit in full side elevation, whilst in the left-hand part the plate 7 is broken away so that a portion of the frame 8 can be seen.
  • the central part of FIG. 2 shows a sectional view of the cutting unit 5.
  • the left-hand part of FIG. 3 is a sectional view taken on the line IIIA--IIIA in FIG. 2. whilst the right-hand part of FIG. 3 is a sectional view taken on the line IIIB--IIIB in FIG. 2.
  • the cutters 6 are of trapezoidal cross-section and are each provided with hair-pulling blades 9 on both sloping sides, which hair-pulling blades are movable relative to the associated cutters in an inward direction, i.e. in a direction substantially towards the frame 8 and back again.
  • the two blades of each pair of hair-pulling blades 9 associated with a cutter 6 are respectively connected to a set of two resilient arms 11 by connecting members 10, the two arms 11 extending transversely of the direction of movement of the cutting unit and being arranged substantially in line with each other.
  • the adjacent, inner ends 12 of the arms 11 are supported by a central spine 13 of the frame 8.
  • the arms 11 form lugs 14 which engage beneath hook-shaped portions 15 of the frame 8.
  • the hook-shaped portions 15 are disposed on the side members 16 of the frame 8.
  • the central spine 13 is connected to the side members 16 by ribs 17.
  • the plate 7 is secured to the frame by pins 18. Via such a pin 18 the cutting unit can be driven in a manner known per se.
  • FIGS. 4 and 5 A pair of hair-pulling blades 9 is shown separately in FIGS. 4 and 5. These blades can be manufactured from a thin metal strip by a few simple operations.
  • FIG. 6 shows an intermediate stage in a process whereby a plurality of such pairs of blades is manufactured simultaneously from a metal strip 19. In this process a plurality of pairs of hair-pulling blades 9 arranged in a row and in a flat condition is formed by a punching operation from the strip 19. Three such pairs of blades are shown in FIG. 6. After separating the lugs 14 from the edge portions of the strip 19 at the locations 20, the two blades of each pair of blades are bent up at the associated connecting members 10 to produce a pair of hair-pulling blades 9 as shown in FIGS. 4 and 5.
  • the embodiment described above is simple to manufacture. Mounting the hair-pulling blades is also very simple because the blades are secured in position only by the resilient arms 11 and the lugs 14 without any other fixing means.
  • the hair-pulling blades may be secured individually to the frame. It is also possible to use only one resilient element arranged centrally for example, between each hair-pulling blade and the frame.
  • FIGS. 7 and 8 largely corresponds to the above-described embodiment.
  • the connecting members 10 of the hair-pulling blades 9, however, are in this case embedded in strips 21 of an elastomeric material, such as natural rubber.
  • the cutters 6 now form separate parts which, like the rubber strips 21, are secured to a frame 22.
  • a hair which is pulled up in this way will generally be in contact with the edge of an aperture 4, so that as a result of frictional forces the hair tends to urge the shear plate inwards, i.e. towards the cutting unit. Therefore, it may be advantageous to make the shear plate as flexible as possible so that a hair-pulling blade, when pulling up a hair, also urges the shear plate towards the cutter associated with the blade, thereby closing a gap which may exist between the shear plate and the cutter and thus promoting an efficient cutting action by the cutter in conjuction with the shear plate.

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  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Forests & Forestry (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Dry Shavers And Clippers (AREA)
  • Lubricants (AREA)
  • Formation And Processing Of Food Products (AREA)
US06/453,425 1982-01-13 1982-12-27 Shaving apparatus Expired - Fee Related US4510687A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NL8200101 1982-01-13
NL8200101A NL8200101A (nl) 1982-01-13 1982-01-13 Scheerapparaat.

Publications (1)

Publication Number Publication Date
US4510687A true US4510687A (en) 1985-04-16

Family

ID=19839068

Family Applications (1)

Application Number Title Priority Date Filing Date
US06/453,425 Expired - Fee Related US4510687A (en) 1982-01-13 1982-12-27 Shaving apparatus

Country Status (8)

Country Link
US (1) US4510687A (de)
EP (1) EP0083952B1 (de)
JP (1) JPS58124471A (de)
AT (1) ATE14539T1 (de)
CA (1) CA1214323A (de)
DE (1) DE3360443D1 (de)
ES (1) ES277340Y (de)
NL (1) NL8200101A (de)

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5383273A (en) * 1992-07-24 1995-01-24 U.S. Philips Corporation Shaving apparatus having a shaving-head frame and a foil frame to be secured thereto
US5402697A (en) * 1993-11-18 1995-04-04 Brooks; Shirley E. Depilatory applicating razor
US5414930A (en) * 1992-07-24 1995-05-16 U.S. Philips Corporation Shaving apparatus having a shaving-head frame and a foil frame spring-mounted on said frame
US5884404A (en) * 1994-07-05 1999-03-23 Braun Aktiengesellschaft Inner cutter for a dry shaving apparatus
US20060110620A1 (en) * 2004-11-24 2006-05-25 Applied Materials, Inc. Process chamber component with layered coating and method
US20070044314A1 (en) * 2005-08-23 2007-03-01 Izumi Products Company Inner cutter for a reciprocating type electric shaver
US20070245565A1 (en) * 2006-04-25 2007-10-25 Matsushita Electric Works, Ltd. Inner cutter of electric shaver and reciprocating electric shaver
US20090113716A1 (en) * 2007-11-02 2009-05-07 Kevin James Wain Razor Blade Assembly Pre-Form
US20100299927A1 (en) * 2007-10-22 2010-12-02 Uwe Fischer Hair removal device
US20100325893A1 (en) * 2007-07-12 2010-12-30 Panasonic Electric Works Co., Ltd. Inner edge of reciprocating electric shaver
US20110005082A1 (en) * 2007-02-01 2011-01-13 Braun Gmbh Hair Removal Apparatus
US20110016723A1 (en) * 2007-10-22 2011-01-27 The Procter & Gamble Company Hair trimmer
CN102689318A (zh) * 2012-06-14 2012-09-26 浙江海顺电工有限公司 一种剃须刀及其往复式“t”字型刀头装置
US11318631B2 (en) 2018-12-05 2022-05-03 Koninklijke Philips N.V. Cutter assembly for a hair cutting appliance

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2256276T5 (es) * 2000-08-07 2011-02-22 Wako Pure Chemical Industries, Ltd. Polímero de ácido láctico y procedimiento para su producción.
CN102369089B (zh) * 2009-03-30 2015-01-07 皇家飞利浦电子股份有限公司 包括成对切割元件和毛发提起元件的用于剃刮设备的托架
DE102009031626A1 (de) 2009-07-03 2011-01-05 Braun Gmbh Schereinheit für einen Trockenrasierer mit Hautprotektoren
DE102009031628A1 (de) 2009-07-03 2011-01-05 Braun Gmbh Untermesser für Trockenrasierer

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2725625A (en) * 1952-09-17 1955-12-06 Frank F Muntz Hair pick-up for electric shavers
US3088205A (en) * 1961-09-15 1963-05-07 Ellis Robert Dry shaver with hair pulling means to aid in cutting the hair
US4150482A (en) * 1977-11-14 1979-04-24 Sunbeam Corporation Modular cutter assembly for an electric dry shaver
US4258470A (en) * 1977-11-28 1981-03-31 U.S. Philips Corporation Shaving apparatus
US4261101A (en) * 1977-11-28 1981-04-14 U.S. Philips Corporation Shaving apparatus with lead cutter

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL7809462A (nl) * 1978-09-18 1980-03-20 Philips Nv Scheerapparaat.

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2725625A (en) * 1952-09-17 1955-12-06 Frank F Muntz Hair pick-up for electric shavers
US3088205A (en) * 1961-09-15 1963-05-07 Ellis Robert Dry shaver with hair pulling means to aid in cutting the hair
US4150482A (en) * 1977-11-14 1979-04-24 Sunbeam Corporation Modular cutter assembly for an electric dry shaver
US4258470A (en) * 1977-11-28 1981-03-31 U.S. Philips Corporation Shaving apparatus
US4261101A (en) * 1977-11-28 1981-04-14 U.S. Philips Corporation Shaving apparatus with lead cutter

Cited By (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5414930A (en) * 1992-07-24 1995-05-16 U.S. Philips Corporation Shaving apparatus having a shaving-head frame and a foil frame spring-mounted on said frame
US5383273A (en) * 1992-07-24 1995-01-24 U.S. Philips Corporation Shaving apparatus having a shaving-head frame and a foil frame to be secured thereto
US5402697A (en) * 1993-11-18 1995-04-04 Brooks; Shirley E. Depilatory applicating razor
US5884404A (en) * 1994-07-05 1999-03-23 Braun Aktiengesellschaft Inner cutter for a dry shaving apparatus
US20060110620A1 (en) * 2004-11-24 2006-05-25 Applied Materials, Inc. Process chamber component with layered coating and method
US20070044314A1 (en) * 2005-08-23 2007-03-01 Izumi Products Company Inner cutter for a reciprocating type electric shaver
US7621050B2 (en) * 2005-08-23 2009-11-24 Izumi Products Company Inner cutter for a reciprocating type electric shaver
US20070245565A1 (en) * 2006-04-25 2007-10-25 Matsushita Electric Works, Ltd. Inner cutter of electric shaver and reciprocating electric shaver
US8146253B2 (en) 2006-04-25 2012-04-03 Panasonic Corporation Inner cutter of electric shaver and reciprocating electric shaver
US20110005082A1 (en) * 2007-02-01 2011-01-13 Braun Gmbh Hair Removal Apparatus
US8458908B2 (en) 2007-02-01 2013-06-11 Braun Gmbh Hair removal apparatus
US20100325893A1 (en) * 2007-07-12 2010-12-30 Panasonic Electric Works Co., Ltd. Inner edge of reciprocating electric shaver
CN101687327B (zh) * 2007-07-12 2012-05-02 松下电器产业株式会社 往复式电动剃刀的内刃
US20110016723A1 (en) * 2007-10-22 2011-01-27 The Procter & Gamble Company Hair trimmer
US20100299927A1 (en) * 2007-10-22 2010-12-02 Uwe Fischer Hair removal device
US8732964B2 (en) 2007-10-22 2014-05-27 Braun Gmbh Hair removal device
US8850707B2 (en) * 2007-10-22 2014-10-07 Braun Gmbh Hair trimmer
US20090113716A1 (en) * 2007-11-02 2009-05-07 Kevin James Wain Razor Blade Assembly Pre-Form
US8650758B2 (en) * 2007-11-02 2014-02-18 The Gillette Company Razor blade assembly pre-form
CN102689318A (zh) * 2012-06-14 2012-09-26 浙江海顺电工有限公司 一种剃须刀及其往复式“t”字型刀头装置
CN102689318B (zh) * 2012-06-14 2014-11-26 浙江海顺电工有限公司 一种剃须刀及其往复式“t”字型刀头装置
US11318631B2 (en) 2018-12-05 2022-05-03 Koninklijke Philips N.V. Cutter assembly for a hair cutting appliance

Also Published As

Publication number Publication date
DE3360443D1 (en) 1985-09-05
JPS58124471A (ja) 1983-07-25
NL8200101A (nl) 1983-08-01
EP0083952A1 (de) 1983-07-20
JPH0317514B2 (de) 1991-03-08
ES277340Y (es) 1985-02-01
CA1214323A (en) 1986-11-25
ATE14539T1 (de) 1985-08-15
ES277340U (es) 1984-07-16
EP0083952B1 (de) 1985-07-31

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Legal Events

Date Code Title Description
AS Assignment

Owner name: U.S. PHILIPS CORPORATION, 100 EAST 42ND ST., NEW Y

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNORS:GROOTHIUS, GERRIT J.;DE HAAN, ATZE;POEL, HENDRIK;AND OTHERS;REEL/FRAME:004098/0720

Effective date: 19830203

FEPP Fee payment procedure

Free format text: PAYOR NUMBER ASSIGNED (ORIGINAL EVENT CODE: ASPN); ENTITY STATUS OF PATENT OWNER: LARGE ENTITY

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Year of fee payment: 4

REMI Maintenance fee reminder mailed
LAPS Lapse for failure to pay maintenance fees
FP Lapsed due to failure to pay maintenance fee

Effective date: 19930418

STCH Information on status: patent discontinuation

Free format text: PATENT EXPIRED DUE TO NONPAYMENT OF MAINTENANCE FEES UNDER 37 CFR 1.362